GB791543A - Process for the production of 2-methylol-3-ketobutene(1,2) - Google Patents

Process for the production of 2-methylol-3-ketobutene(1,2)

Info

Publication number
GB791543A
GB791543A GB21336/54A GB2133654A GB791543A GB 791543 A GB791543 A GB 791543A GB 21336/54 A GB21336/54 A GB 21336/54A GB 2133654 A GB2133654 A GB 2133654A GB 791543 A GB791543 A GB 791543A
Authority
GB
United Kingdom
Prior art keywords
ketobutene
methylol
trimethylolacetone
pumice
production
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB21336/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rheinpreussen AG fuer Bergbau und Chemie
Original Assignee
Rheinpreussen AG fuer Bergbau und Chemie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rheinpreussen AG fuer Bergbau und Chemie filed Critical Rheinpreussen AG fuer Bergbau und Chemie
Publication of GB791543A publication Critical patent/GB791543A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/85—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/68—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
    • C07C45/72—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups
    • C07C45/74—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms by reaction of compounds containing >C = O groups with the same or other compounds containing >C = O groups combined with dehydration
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/78—Separation; Purification; Stabilisation; Use of additives
    • C07C45/81—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C45/82—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
    • C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
    • C07C49/17—Saturated compounds containing keto groups bound to acyclic carbon atoms containing hydroxy groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

2-Methylol-3-ketobutene(1,2) is prepared by eliminating water and formaldehyde from 3:3:3-trimethylolacetone by treatment with a dehydrating agent at a temperature above 100 DEG C., and preferably at a sub-atmospheric pressure. Specified dehydrating agents include phosphoric, sulphuric and p-toluene sulphonic acids, pumice, aluminium hydroxide and aluminium hydrosilicates. In an example: an intimate mixture of 3:3:3-trimethylolacetone and pumice is slowly heated to 180-210 DEG C. under reduced pressure, when water distils off, followed by 2-methylol-3-ketobutene(1,2), which is then refractionated. Specification 791,541 is referred to.
GB21336/54A 1953-08-03 1954-07-21 Process for the production of 2-methylol-3-ketobutene(1,2) Expired GB791543A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE791543X 1953-08-03

Publications (1)

Publication Number Publication Date
GB791543A true GB791543A (en) 1958-03-05

Family

ID=6704412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21336/54A Expired GB791543A (en) 1953-08-03 1954-07-21 Process for the production of 2-methylol-3-ketobutene(1,2)

Country Status (1)

Country Link
GB (1) GB791543A (en)

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